rust: Support rust_args

mesonbuild/backend/ninjabackend.py

@@ -1170,6 +1170,7 @@ int dummy;
         args += rustc.get_buildtype_args(self.get_option_for_target('buildtype', target))
         depfile = os.path.join(target.subdir, target.name + '.d')
         args += ['--emit', 'dep-info={}'.format(depfile), '--emit', 'link']
+        args += target.get_extra_args('rust')
         args += ['-o', os.path.join(target.subdir, target.get_filename())]
         orderdeps = [os.path.join(t.subdir, t.get_filename()) for t in target.link_targets]
         linkdirs = OrderedDict()

mesonbuild/build.py

@@ -34,6 +34,7 @@ known_basic_kwargs = {'install': True,
                       'fortran_args': True,
                       'd_args': True,
                       'java_args': True,
+                      'rust_args': True,
                       'link_args': True,
                       'link_depends': True,
                       'link_with': True,
@@ -632,6 +633,10 @@ class BuildTarget(Target):
         if not isinstance(fortranlist, list):
             fortranlist = [fortranlist]
         self.add_compiler_args('fortran', fortranlist)
+        rustlist = kwargs.get('rust_args', [])
+        if not isinstance(rustlist, list):
+            rustlist = [rustlist]
+        self.add_compiler_args('rust', rustlist)
         if not isinstance(self, Executable):
             self.vala_header = kwargs.get('vala_header', self.name + '.h')
             self.vala_vapi = kwargs.get('vala_vapi', self.name + '.vapi')

test cases/rust/1 basic/meson.build

@@ -1,6 +1,9 @@
 project('rustprog', 'rust')
 
-e = executable('program', 'prog.rs', install : true)
+e = executable('program', 'prog.rs',
+  rust_args : ['-C', 'lto'], # Just a test
+  install : true
+)
 test('rusttest', e)
 
 subdir('subdir')